60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
#pragma once
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#include "utils.h"
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#include <stdbool.h>
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#include <stdint.h>
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#include <sys/types.h>
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/// @brief The information about a disk.
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typedef struct {
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/// @brief The virtual size of the disk.
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uint64_t virtual_size;
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/// @brief The actual size of the disk.
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uint64_t actual_size;
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/// @brief The path to the backing file of the disk. This is NULL if the disk is not backed.
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char* backing_file;
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} DiskInfo;
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/// @brief Creates a root disk at the given path, with the given size and with the given permissions.
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/// @param path The path to the disk to create.
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/// @param size The size of the disk to create.
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/// @param permissions The permissions to set on the disk.
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/// @return The result of the operation.
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Result create_root_disk(const char* path, uint64_t size, mode_t permissions);
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/// @brief Creates a backed disk at the given path, with the given backing disk and with the given permissions.
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/// @param path The path to the disk to create.
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/// @param backing_disk The disk to back the new disk with.
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/// @param permissions The permissions to set on the disk.
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/// @return The result of the operation.
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Result create_backed_disk(const char* path, const char* backing_disk, mode_t permissions);
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/// @brief Trims a disk to remove any unused space.
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/// @param path The path to the disk to trim.
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/// @return The result of the operation.
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Result trim_disk(const char* path);
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/// @brief Moves a disk's backing file to the given path.
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/// @param path The path to the disk to move.
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/// @param backing_disk The new path to the backing disk.
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/// @return The result of the operation.
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Result rebase_disk(const char* path, const char* backing_disk);
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/// @brief Resets a disk to its original state.
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/// @param path The path to the disk to reset.
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/// @return The result of the operation.
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Result reset_disk(const char* path);
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/// @brief Gathers information about a disk.
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/// @param path The path to the disk to gather information about.
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/// @param out_info The information about the disk.
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/// @return The result of the operation.
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Result get_disk_info(const char* path, DiskInfo* out_info);
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/// @brief Frees the resources used by the given disk information.
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/// @param info The disk information to free.
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void free_disk_info(DiskInfo* info);
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